Bottle closure



-April19,1927. 1,625,594

H. DE WALLACE BOTTLE CLOSURE Filed Aug. 16, 1926 Patented Apr. 19,- 1927.

UNITED STATES 1,625,594 PQATENT OFFICE.

HARRY DE WALLACE, or SYRACUSE, NEW'YORK, nssronon T0 wALLAcn M. wem

AND JOHN A. mass, or SKANEATELES, NEW YORK.

BOTTLE cnostmn.

Application filed August 16, 1926. Serial No. 129,569.

This invention relates to improvements in bottle closures, designed particularly for sealing milk and other portable containers, and has for its object to provide a one-piece closure, comprising a central relatively thick .and stiff disc-shaped portion that seats upon the bottom of the recess of the bottle mouth, for effecting the primary seal of the bottle, and an integral relatively thin annular c011- vex apron, which overlays the top and inner face of the bottle mouth, for effectually shielding the pouring-surface of the mouth from dirt and erms, and for effecting a secondary seal a jacent the disc. Aparticular object is to provide a closure having the aforesaid, features, that requires no assembling of the parts, either duringor following the stamping and molding operations, and which may be stamped out of a continuous strip of uncalendared pulp-board, or like librous material, while the said strip is be. ing fed through a stamping or molding mechanism; the said embossed portion providing a square-cut annular abutment, which enables the apron to be molded to conform to the flare of the bottle mouth, and which tends to expand and tighten the grip of the the closures to be stacked, or packed in close order in tubular magazines or cartons for shipment, and from whichthe closures may be fed directly into the capping machine without rehandli n I attain these iiijects by the means set forth in the detailed description which fol-' lows, and as illustrated by the accompanying drawing, in whichigures 1 and 2 are respectively a fragmenta plan and an edge view of the blank strip, rom which the closures are made. is a plan view showing the circular Fig. 3

be y of the closure stamped out of the strip,

its mar inal portion being compressed, and its medial portion being embossed. Fig. 4 is an elevation of the same. Figs. 5 and 6 are respectively a. top plan, and a central crosss ection oi the closure; showing the mar inal portion of the body formed convex an the central portion depressed; the section being contact with the adjacent Wal taken on lines 6-6 of Fig. 5. Fig. -7 is acentral vertical section; s owing the closure applied to the mouth of a bottle.- Fig. 8 1s respectively a top plan, and an edge VleW, of a modified form of the closure; showing an integral segmental apron to protect a portion of the mouth of the bottlel over which the contents may be saiel poured. And Fig. 9 is a top plan view of the closure shown in Figs. 3 to 7 inclusive; showing a shallow depression in the to face of the disc surrounded by a protecting ledge, for facilitating printing a dealers name,-and.the like, while' the strip of material is passing through the cap molding machine, without danger of the wet ink being smeared.

In the drawing, 2 represents the neck of an ordinary milk bottle, and 3 the mouth,

example, as pulp-board, which may be. cut

or stamped out of a plain continuous stri as 6 (see Figs. 1, 2 and 3), the said he y preferably being operated upon by suitable dies (not shown), for compressing the marginal portion, as 6, in a manner to materially reduce its thickness, and at the same time, leaving the medial portion 6 embossed (see Figs. 3, 4, 5 and 7 The body 6 may then be passed between other dies '(not shown), which mold the thin margin 6*. convex, and simultaneously depress the disc 6 (see Figs. 5 and 6), and fold the inner margin of the convex apron 6 against the peripheryof the disc, to the end that when the closure 6 is applied to the mouth 3, the said disc may be readily and firmly seated upon the ledge 5 with its periphery in close of the recess (see Fig. 7). The second set of dies is preferably arranged to produce a relatively thin and flatclosure (see Fig. 6) having a shallow concave'margin, whereby large numbers of the closures may be stacked, or stored in close order in cartons or ma azines suitable for shipping and for faciitating positive and rapid feeding of the closures into the capping machines without rehandling. The apron 6 is preferably more or less pliable, even though it is compressed, as shown 'and germs, and at the same time greatlyin Fig. 3, and when the closure 6 is applied to the bottle mouth by the capping plunger, the latter is able to force the disc 6 into the relatively deep recess 4 and affect a firm seating of the disc upon the ledge 5, as shown in Fig. 7. This latter operation materially deepens the concave portion if-6 and also compresses theapron 6 tightly against the head 3. The diameter of the disc 6 is preferably smallerthan the bottom diameter of the recess. and when enlarged by the upward folding of the apron 6 requires considerable force to properly seat the disc upon the ledge 5, as well as to effect the close contact of the base of the apron with the corresponding shoulder or wall 4;"of the recess (see Fig. 7).

In Fig. 8 is shown a modification of the closure consistin of a plane compressible disc 7, substanti ly the diameter of the bot tom of the recess, which is adapted to be seated on the ledge 5 of the recess, the same as the disc 6. The disc- 7 is formed at one side with a segmental apron 'or flange 7, which is preferably compressed, the same as the apron 6, to a thinner gage than the disc 7, and the said segment is preferably curved or convened to conform to and overlay a corresponding portion of the head of the bottle mouth. Obviously, two equidistantly spaced integral segments may be formed at the opposite sides of the disc 7, as shown in the top view of Fig. 8. But ordinarily a single segment affords a relatively broad pouring surface and an adequate safe-guard. The object of the segment 7 is to provide a relatively broad pouring surface, that may be shielded from dirt reduce the area of the blank from which the closure is made, thereb cheapening its manufacture. The underside of the segments ,7, may be treated with any suitable adhesive for eifecting a tight seal between the bead and the segment, as indicated at 7, in Fig. 8.

In Fig. 9 the medial disc 6 of the closure 6 is formed with a shallow recess or depression 6 having a plane bottom 6, surrounded by a raised ledge or guard 6. Upon the surface 6 may be imprinted the dealers name,

aeaaee'a and the grade or character of the contents of the container, while the strip 6 is passing through the cap-forming machine. The ledge 6 tends to prevent parts of the machine or other objects from smearing the wet ink.

My invention extremely simple. By constructing the entire closure from one piece of material, as herein shown and described,

I am able to effect a. tight seal of the bottle mouth, aflord sanitary protection of the pouring surface of the mouth, and at the same time eliminate the usual separate reinforcing discs, together with the dies and mechanism required to produce and assemble the usual composite closures.

Having thus described my invention, what I claim, isi 1. A bottle closure comprising a disk having a thick stiff central portion and having a portion beyond the central portion compressed to a degree to provide a thin pliable member which is curved toengage overthe head of a bottle mouth and which is integral with the central portion, said member being bent upwardly at its inner side to abut the periphery of the thick stiff central portion so as to receive support therefrom.

f2. A bottle closure comprising a disk having a thick stiff central portion and having a portion beyond the central portion cpmpressed to a degree to provide a thin-pliable member which is curved to engage over the bead of a bottle mouth and which is integral with the central portion.

3. A bottle closure comprising a disk having a' thick stiff central portion and having a portion beyond the central portion compressed to a degree to provide a thin pliable member which is curved to engage over the head of a bottle mouth and which is integral with the central portion, said central portion having its upper face depressed at points within its periphery to provide a printingreceivin part which lies below the raised margina part of the central portion so as to cause the said raised marginal part to af ford prdtection for the printing.

In'testimony whereof I :afiix my signature.

HARRY DE WALLACE. 

